This landslide
complex along the Vermilion Cliffs near House Rock shows multiple slump-block,
or Toreva-block style slides.
Notice the backrotated strata present in the landslide blocks.

The Vermilion
Cliffs, Echo Cliffs, and Paria Canyon contain landslides failing mostly
in the Petrified Forest Member of the Chinle Formation. Major
John Wesley Powell first noted the occurance of landslides in the
region during his 1869 expedition to the canyons of the Green and
Colorado Rivers. Additional researchers have focused on the
region and have published articles contributing to our knowledge of
the area. These three sections recount prior research and introduce
our findings.